Malicious PDF — malware analysis report

Static analysis result for SHA-256 9813ba16bfccad3f…

MALICIOUS

PDF

44.1 KB Created: 2020-05-13 03:57:54 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 922bc0c7714b3427c31d6310b8e7ccde SHA-1: 671c406cf7f405334fd1a2f54d59e6c2f918dd7c SHA-256: 9813ba16bfccad3fe56315eef17acab13273718f26b5207bc23a31dd0f88c1be
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are dynamically generated and appear to be part of a link farm designed to improve search engine rankings. The document body text, while partially corrupted, includes a phrase related to Android emulators, suggesting a lure to attract users searching for such software. The primary attack pattern involves directing users to a network of malicious websites.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://jenntreado.com/uploads/1/3/1/4/131453330/131453330.html#emulator+android+terbaik+dan+ringan+untuk+laptop
    • http://ctesteve.com/uploads/1/3/0/8/130874477/kevanesoborige.pdf
    • http://snowshovelmt.com/uploads/1/3/0/6/130620847/ecbf5b4f635f8a4.pdf
    • http://tripleheartbalance.com/uploads/1/3/0/2/130288483/9083ca1b.pdf
    • http://cash4goldcp.com/uploads/1/3/1/3/131379045/lurisexitusafe_sozomojimow_jowir_rawovelolivun.pdf
    • http://ssquaredesign.com/uploads/1/3/0/7/130776672/65e26.pdf
    • http://blingbitz.net/uploads/1/3/0/6/130603853/doregeti.pdf
    • http://cre4bottlers.com/uploads/1/3/1/3/131398373/vosodifugutorukave.pdf
    • http://weedinthrutraffic.com/uploads/1/3/0/7/130775045/7823340.pdf
    • http://manwithgunband.com/uploads/1/3/0/7/130776213/13719ec125.pdf
    • http://fityourbody.eu/uploads/1/3/1/0/131070030/mowapuzagimujiduxali.pdf
    • http://healthcareresource.net/uploads/1/3/1/8/131871951/1fabd6ac3ba.pdf
    • http://somewhere2turn.com/uploads/1/3/0/6/130604561/mugujiterabulux_bowofi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000080e5.bin
673b744a44aa0a6d01bb21495e1094d508c25433eee12a6ce6fbba8cba7eab87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80E5 10460 bytes

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